sieve
YC X25 · Active · AI + human review to solve data cleaning - accessible via API or Excel
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 TrataShared: hedge fund, investing, investmentActiveAI | AI | Active | YCW25 |
 BracketShared: same information, data pipeline, data engineeringAcquiredData, Devtools | Data, Devtools | Acquired | YCW22 |
 DevFlightShared: data pipeline, data engineeringInactiveData, Devtools | Data, Devtools | Inactive | YCW19 |
 BenchmarkShared: investment firm, data, finance and accountingActiveAI | AI | Active | YCW23 |
| Sliced InvestingShared: hedge fund, investing, investmentAcquiredOther | Other | Acquired | YCS14 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 SieveShared: quality data, high quality, data engineeringActiveAI, Data, Devtools | AI, Data, Devtools | Active | YC +1W22 |
 ilumadataShared: data pipeline, data engineering, codeInactiveData, Devtools | Data, Devtools | Inactive | YCS22 |
 WaypointShared: apis, emailActiveDevtools | Devtools | Active | YCW21 |
 Mica AIShared: data pipeline, data engineering, reviewActiveAI, Data | AI, Data | Active | YCS24 |
 FiraShared: investment firm, data, integrateActiveOther | Other | Active | YCW25 |
Also from X25 in AI
All of X25
Founders
- Nicole LuFounder/CEO
About sieve
sieve solves data cleaning for hedge funds and investment firms by letting them get clean data in four lines of code. Currently, their data pipelines have conditions that raise for human review, which literally send an email to engineers with data that needs to be reviewed. We provide an API that integrates directly into their existing pipeline - instead of raising for human review, they can send all the same information to our API and get clean, high-quality data back. By using our AI agents built specifically for financial data collection, along with expert-in-the-loop review, we provide our clients with clean, validated data at a scale and level of quality that wasn't achievable before.
- YC batch
- X25 · Spring 2025
- Status, per YC
- Active
- Category
- AI, Data, Developer tools
- Team size
- 2
- Location
- New York City, NY, USA
- Founded
- 2025
- Checked
- 1h ago
YC tags: Investing, Data Engineering, APIs
sieve: questions
Which YC batch was sieve in?
sieve was in Y Combinator's Spring 2025 batch (X25).
Is sieve still active?
Y Combinator lists sieve as active.
Who founded sieve?
sieve's founders, as listed on its YC page: Nicole Lu (Founder/CEO).
Where is sieve based?
sieve lists New York City, NY, USA as its location on YC's directory.
Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.